Counter-Flank.

When I was at a summer camp that was paintball centric, there was a pretty cool move that my team and I pulled. So, the game starts, and the other team immediately bum-rushes our base. I, along with another comrade, took advantage of a wall of plywood and immediately flanked their side. I managed to bunker someone and catch 4 others from their side. Extremely effective if the enemy team doesn't cover all bases, so to speak.